Quantized H8 filter design of interconnected continuous-time delay systems

A generalized approach to the problem of quantized filtering is investigated by designing a set of decentralized H∞ filters for a class of linear interconnected continuous‐time systems with unknown‐but‐bounded couplings and interval delays and where the quantizer has arbitrary form. An LMI‐based method using a decentralized quantized filter is designed at the subsystem level to render the global filtered system delay‐dependent asymptotically stable with guaranteed γ − level. It is established that this setting encompasses several special cases of interest including interconnected delay‐free systems, single time‐delay systems and single systems. We illustrate the theoretical developments by numerical simulations.